Personal care composition preservatives level optimization

Abstract

The present invention is direct to a hair care composition comprising from about 8 to about 17% of one or more surfactants; from about 0.1-0.25% of salicylate salts or acids; from about 0.1-0.25% of benzoate salts or acids wherein there is a weight ratio of about 1:1 to 2.5:1 for the salicylate salts or acids to sodium benzoate salts or acids.

What is claimed: 
     
         1 . A hair care composition comprising:
 a. from about 10 to about 17% of one or more substantially free of sulfate-based surfactants;   b. from about 0.1-0.25% of salicylate salts or acids;   c. from about 0.1-0.25% of benzoate salts or acids wherein there is a weight ratio of about 1:1 to 2.5:1 for the salicylate salts or acids to sodium benzoate salts or acids.   
     
     
         2 . A hair care composition according to  claim 1  where the salicylate salts or acids is from about 0.1 to 0.2%. 
     
     
         3 . A hair care composition according to  claim 1  wherein the salicylate salts or acids is from about 0.1 to 0.18%. 
     
     
         4 . A hair care composition according to  claim 1  wherein the salicylate salts or acids is sodium salicylate. 
     
     
         5 . A hair care composition according to  claim 1  wherein the benzoate salts or acids is sodium benzoate. 
     
     
         6 . A hair care composition according to  claim 1  wherein the benzoate salts or acids is from about 0.1 to 0.2%. 
     
     
         7 . A hair care composition according to  claim 1  wherein the benzoate salts or acids is from about 0.1 to 0.18%. 
     
     
         8 . A hair care composition according to  claim 1  wherein there is a weight ratio of about 1:1 to 2:1 of the salicylate salts or acids to the benzoate salts or acids. 
     
     
         9 . A hair car composition according to  claim 1  wherein there is a weight ratio of about 1:1 to 1.5:1 of the salicylate salts or acids to the benzoate salts or acids. 
     
     
         10 . A hair care composition according to  claim 1  wherein there is a weight ratio of about 1:0.9 to 2:1 of the salicylate salts or acids to the benzoate salts or acids. 
     
     
         11 . A hair care composition according to  claim 1  wherein there is a weight ratio of about 1:0.8 to 2:1 of the salicylate salts or acids to the benzoate salts or acids. 
     
     
         12 . A hair care composition according to  claim 1  wherein there is a weight ratio of about 1:0.75 to 2:1 of the salicylate salts or acids to the benzoate salts or acids. 
     
     
         13 . A hair care composition according to  claim 1  wherein there is a weight ratio of about 1:0.8 to 1.5:1 of the salicylate salts or acids to the benzoate salts or acids. 
     
     
         14 . A hair care composition according to  claim 1  wherein the composition has a pH less than or equal to about 6. 
     
     
         15 . A hair care composition according to  claim 14  wherein the pH of the composition is greater than 4.5 and less than about 6. 
     
     
         16 . A hair care composition according to  claim 1  wherein the composition provides a net change in bacteria log reduction of 0.5 or greater in comparison to an unpreserved control. 
     
     
         17 . A hair care composition according to  claim 1  wherein the composition provides a net change in yeast and/or mold log reduction of 0.5 or greater in comparison to an unpreserved control. 
     
     
         18 . A hair care composition according to  claim 1  wherein the composition provides a net change in bacteria log reduction of 0.5 or greater and yeast and/or mold log reduction of 0.5 or greater in comparison to an unpreserved control. 
     
     
         19 . A hair care composition according to  claim 1  wherein the composition provides a net change in bacteria log reduction of 0.5 or greater in comparison to an unpreserved control at the 2-day timepoint. 
     
     
         20 . A hair care composition according to  claim 1  wherein the composition provides a net change in yeast and/or mold log reduction of 0.5 or greater in comparison to an unpreserved control at the 7-day timepoint. 
     
     
         21 . A hair care composition according to  claim 1  wherein the composition provides a net change in bacteria log reduction of 0.5 or greater in comparison to an unpreserved control at the 2-day timepoint and yeast and/or mold log reduction of 0.5 or greater in comparison to an unpreserved control at the 7-day timepoint. 
     
     
         22 . A hair care composition according to  claim 1  wherein the composition further comprising one or more soluble antidandruff agents. 
     
     
         23 . A hair care composition according to  claim 22  wherein the one or more soluble antidandruff agents is hydroxyl pyridone. 
     
     
         24 . A hair care composition according to  claim 23  wherein the hydroxyl pyridone is piroctone olamine. 
     
     
         25 . A hair care composition according to  claim 22  wherein the one or more soluble antidandruff agents is an azole. 
     
     
         26 . A hair care composition according to  claim 25  wherein the azole is climbazole. 
     
     
         27 . A hair care composition according to  claim 22  wherein the one or more soluble antidandruff agents is from about 0.01% to about 10%. 
     
     
         28 . A hair care composition according to  claim 22  wherein the one or more soluble antidandruff agents is from about 0.02% to about 8%. 
     
     
         29 . A hair care composition according to  claim 22  wherein the one or more soluble antidandruff agent is from about 0.05% to 5%. 
     
     
         30 . A hair care composition according to  claim 1  wherein the surfactant is an anionic surfactant or combinations of anionic surfactants. 
     
     
         31 . A hair care composition according to  claim 1  wherein the surfactant is an anionic surfactant or combinations of surfactants selected from the group consisting of anionic alkyl sulfates and alkyl ether sulfates having straight or branched alkyl chains and mixtures thereof. 
     
     
         32 . A hair care composition according to  claim 1  wherein the surfactant is a surfactant or combinations of surfactants that is selected from the group consisting of amino acid based anionic surfactants, sulfosuccinates, isethionates, sulfonates, sulfoacetates, sulfolaurates, glucose carboxylates, alkyl ether carboxylates, taurates, lactates and lactylates. 
     
     
         33 . A hair care composition according to  claim 32  wherein the surfactant is a surfactant or combinations of surfactants that is selected from the group consisting of anionic alkyl and alkyl ether sulfosuccinates, dialkyl and dialkyl ether sulfosuccinates, sodium lauroyl methyl isethionate, sodium cocoyl isethionate, ammonium cocoyl isethionate, sodium hydrogenated cocoyl methyl isethionate, sodium lauroyl isethionate, sodium cocoyl methyl isethionate, sodium myristoyl isethionate, sodium oleoyl isethionate, sodium oleyl methyl isethionate, sodium palm kerneloyl isethionate, sodium stearoyl methyl isethionate, alpha olefin sulfonates, linear alkylbenzene sulfonates, alkyl glyceryl sulfonates, sodium laurylglucosides hydroxypropylsulfonate, sodium lauryl sulfoacetate, ammonium lauryl sulfoacetate, sodium methyl cocoyl taurate, sodium methyl lauroyl taurate, sodium caproyl methyltaurate, sodium methyl oleoyl taurate, sodium cocoyl taurate, sodium lauroyl taurate and sodium caproyl taurate. 
     
     
         34 . A hair care composition according to  claim 1  wherein one or more surfactants is present from about 10% to about 16%. 
     
     
         35 . A hair care composition according to  claim 1  wherein one or more surfactants is present from about 10% to about 15%. 
     
     
         36 . A hair care composition according to  claim 1  wherein one or more surfactants is present from about 10% to about 14%. 
     
     
         37 . A hair care composition according to  claim 1  wherein one or more surfactants is present from about 10% to about 13%. 
     
     
         38 . A hair care composition according to  claim 1  further comprising from about 0.25% to about 15% of one or more amphoteric, nonionic or zwitterionic co-surfactants. 
     
     
         39 . A hair care composition according to  claim 38  wherein the one or more amphoteric, nonionic or zwitterionic co-surfactants is selected from the group consisting of betaines, lauramidopropyl betaine, cocamidopropyl betaine, coco-betaine, cetyl betaine, lauryl hydroxysultaine, sodium lauroamphoacetate, disodium cocoamphodiacetate, cocamide monoethanolamide, sultaines, hydroxysultaines, amphohydroxypropyl sulfonates, alkyl amphoacetates, alkyl polyglucosides and mixtures thereof. 
     
     
         40 . A hair care composition according to  claim 1  further comprising one or more cationic polymers selected from the group consisting of a cationic guar polymer, a cationic non-guar galactomannan polymer, a cationic tapioca polymer, a cationic copolymer of acrylamide monomers and cationic monomers, a synthetic, non-crosslinked, cationic polymer, which may or may not form lyotropic liquid crystals upon combination with the detersive surfactant, a cationic cellulose polymer and mixtures thereof. 
     
     
         41 . A hair care composition according to  claim 40  wherein the one or more cationic polymer is selected from the group consisting of guar hydroxypropyltrimonium chloride, salts of hydroxyethyl cellulose reacted with trimethyl ammonium substituted epoxide, a cationic copolymer of acrylamide monomers and cationic monomers, a synthetic, non-crosslinked, cationic polymer, which may or may not form lyotropic liquid crystals upon combination with the detersive surfactant. 
     
     
         42 . A hair care composition according to  claim 40  wherein the one or more cationic polymers is from about 0.08% to about 3%. 
     
     
         43 . A hair care composition according to  claim 40  wherein the one of more cationic polymers is from about 0.1% to about 2%. 
     
     
         44 . A hair care composition according to  claim 40  wherein the one of more cationic polymers is from about 0.2% to about 1%. 
     
     
         45 . A hair care composition according to  claim 1  further comprising from about 0.01% to about 10% of one or more thickening polymers; 
     
     
         46 . A hair care composition according to  claim 45  wherein the one or more thickening polymer is selected from the group consisting of homopolymers based on acrylic acid, methacrylic acid or other related derivatives, alkali swellable and hydrophobically-modified alkali swellable acrylic copolymers or methacrylate copolymers, soluble crosslinked acrylic polymers, associative polymeric thickeners and mixtures thereof. 
     
     
         47 . A hair care composition according to  claim 1  further comprising one or more scalp health agents. 
     
     
         48 . A hair care composition according to  claim 47  wherein one or more scalp health agents is selected from the group consisting of sulfur, menthol, menthyl lactate and mixtures thereof. 
     
     
         49 . A hair care composition according to  claim 47  wherein the one or more scalp health agents is polyvalent metal salts of pyrithione. 
     
     
         50 . A hair care composition according to  claim 49  wherein the one or more scalp health agents is zinc pyrithione. 
     
     
         51 . A hair care composition according to  claim 47  wherein the one or more scalp health agents is from about 0.01% to 10%. 
     
     
         52 . A hair care composition according to  claim 47  wherein the one or more scalp health agents is from about 0.05% to 9%. 
     
     
         53 . A hair care composition according to  claim 47  wherein the one or more scalp health agents is from about 0.1% to 8%.